30 / A heavier quantum wave
The Nanoparticle That Interfered With Itself
A sodium cluster containing more than 7,000 atoms produced matter-wave interference. The result pushes a controlled quantum test toward greater mass without settling where the classical world begins.
The word 'cat' gives this experiment a theatrical shape, but the instrument measured something more exact. Nanoparticles passed through an interferometer designed so their possible paths could contribute to a fringe pattern. The pattern is evidence for coherence in the motion of individual massive clusters, not evidence that a living organism occupied two visible places. Increasing the mass makes the test harder because collisions and other environmental interactions can erase the delicate relationship between alternatives.
The full investigation continues with the evidence, illustrations, and sources at The Last Transmission on Substack.
Continue reading on SubstackTHE EVIDENCE / THE OPEN QUESTION
What we know.
The published experiment reports interference from sodium nanoparticles with masses above 170,000 daltons and more than 7,000 atoms per cluster. Its matter-wave result extends a family of tests that began with much smaller particles.
What remains open.
No experiment has located a final size where quantum mechanics ceases to work. One larger cluster does not prove that all macroscopic objects can be held in the same state, and the observed fringe pattern is not an image of a particle physically split in half.
Why it matters.
The boundary between quantum and familiar behavior becomes a question for apparatus and evidence rather than a slogan about tiny things. Each increase in complexity gives competing ideas about that boundary another measurable target.
GO DEEPER / EVIDENCE FILE
How Do We Know 7,000 Atoms Interfered?
The measured fringe contrast changes with grating laser power as the quantum model predicts. A stripe alone would not distinguish wave interference from a classical shadow.
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Research behind the field note.
EXPLORE IN 3D / ATLAS I-07
Enter the matter-wave interferometer
See the light gratings and let individual illustrative transmitted counts build a fringe signal. The scan is a teaching model, not a replay of measured events.
Explore Matter-Wave Interferometer in 3DWATCH THE RELATED DOCUMENTARY
The story in motion.
VISUAL EVIDENCE
Inside the investigation.
FOLLOW THE THREAD
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